Materials and Their Characteristics

Steel Alloys

  • High-strength steel: Used for chassis and structural components (80% of vehicle weight)
  • Stainless steel: Corrosion-resistant material for exhaust systems
  • Alloy steel: Enhanced strength and durability for engine components

Aluminum Alloys

  • Lightweight yet strong: 30% lighter than steel with good corrosion resistance
  • Heat conductivity: Excellent for engine blocks and radiators
  • Cost-effective: Balances performance and affordability

Engineering Plastics

  • Polypropylene (PP): Lightweight, durable material for interior components
  • ABS (Acrylonitrile Butadiene Styrene): Impact-resistant plastic for exterior trim
  • Polyamide (PA): High-temperature resistance for under-hood applications

Rubber Components

  • Natural rubber: High elasticity for tires and seals
  • Synthetic rubber: Enhanced durability for belts and hoses
  • EPDM: Weather-resistant material for gaskets and seals
现代汽车配件材料使用比例

Manufacturing Processes and Precision Requirements

CNC Machining

Computer Numerical Control machining delivers exceptional precision:
  • Tolerance levels: ±0.005mm for critical components
  • Multi-axis capabilities: Complex geometries and intricate details
  • Material versatility: Works with metals, plastics, and composites
CNC加工精密零件

Precision Casting

  • Investment casting: Intricate shapes with minimal post-processing
  • Sand casting: Cost-effective for larger components
  • Die casting: High-volume production with tight tolerances

Injection Molding

  • High precision: Dimensional accuracy for plastic components
  • Surface finish: Smooth surfaces with minimal defects
  • Production efficiency: Rapid cycle times for mass production

Stamping and Forming

  • Sheet metal stamping: High-strength components with excellent surface finish
  • Forging: Grain flow optimization for enhanced strength
  • Extrusion: Complex profiles for structural components
不同汽车配件类型的精度要求对比

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